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 Surface Location
 API# 05-045-13801		Well Classification: GW Status: PR - 10/1/2025
Well Name/No:N. DUTTON #12-31D
(Click Well Name for Production Data)		Click Here for Transporter Gatherer Info
Operator:QB ENERGY OPERATING LLC - 10844
(Click Operator Name for Company Detail Report)		Federal Or State Lease #:
Facility Status:PRStatus Date10/1/2025
FacilityID:289535LocationID:334159
County:GARFIELD #045Location:NWNE 12 8S96W 6
Field:GRAND VALLEY - #31290Elevation:6044 ft.
Basin:PICEANCE BASIN  
Planned Location:265FNL  1607 FELLat/Long: 39.371544 / -108.054074Lat/Long Source: Field Measured
As Drilled Location:Footages Not AvailableLat/Long: 39.371539 / -108.054072Lat/Long Source: Field Measured
 Wellbore And Formation Details -- select either a wellbore Or formation to expand.
 

Wellbore #00             Wellbore Classification: GW             Status: PR - 10/1/2025             Measured TD: 6679 ft.    Vertical TD: 6564 ft.

 Wellbore Data for Original WellboreWellbore Classification: GW        PR - 10/1/2025
Wellbore PermitDIRECTIONAL
Permit #:20070528 Expiration Date:3/1/2008
Proposed Top PZ Location:Sec: Twp: Footage: 1171 FNL  1913 FEL
Bottom Hole Location:Sec:12 Twp: 8S 96W Footage: 1171 FNL  1913 FEL
Proposed Depth/Form:6679 ft.
Surface Mineral Owner Same:Yes
Mineral Owner:FEESurface Owner:FEE
Unit: Unit Number: 
Formation And Spacing:Code: ILES , Formation: ILES , Order: 139-51 , Unit Acreage: 40, Drill Unit: NWNE
Formation And Spacing:Code: WMFK , Formation: WILLIAMS FORK , Order: 139-45 , Unit Acreage: 40, Drill Unit: NWNE
Wellbore Completed
Completion Date:4/28/2007
Spud Date:4/22/2007Spud Date Is:ACTUAL
Measured TD:6679 ft.Measured PB depth:6600 ft.
True Vertical TD:6564 ft.True Vertical PB depth:
Top PZ Location:Sec:12 Twp: 8S 96WFootage: 1168 FNL  1842 FEL
Bottom Hole Location:Sec:12 Twp: 8S 96WFootage: 1168 FNL  1842 FEL
Log Types:CBL/RMT
Casing:String Type: CONDUCTOR, Hole Size: 20 in., Size: 16 in., Top: 0 ft., Depth: 78 ft., Weight: , Citings Type: ACTUAL
Cement:Sacks: , Top: 0 ft., Bottom: 78 ft., Determination Method:
Casing:String Type: SURF, Hole Size: 12.25 in., Size: 8.625 in., Top: 0 ft., Depth: 1525 ft., Weight: , Citings Type: ACTUAL
Cement:Sacks: 457, Top: 0 ft., Bottom: 1525 ft., Determination Method:
Casing:String Type: 1ST, Hole Size: 7.875 in., Size: 4.5 in., Top: 0 ft., Depth: 6662 ft., Weight: , Citings Type: ACTUAL
Cement:Sacks: 461, Top: 2800 ft., Bottom: 6662 ft., Determination Method: CBL
FormationInterval TopLog BottomCoredDSTs
WILLIAMS FORK3091 ft.NN
CAMEO5544 ft.NN
ROLLINS5903 ft.NN
COZZETTE6183 ft.NN
CORCORAN6421 ft.NN
MANCOS6532 ft.NN

Formation CRCRN                   Formation Classification:  GW                   Status:  PR - 10/1/2025                 Interval Top: 6433 ft.    Interval Bottom: 6495 ft.

 Completed Information for Formation CORCORAN
1st Production Date:2/22/2008Choke Size:0.438 in.
Formation Name:CORCORANCommingled:Yes
Production Method:
Open Hole Completion:No
Formation Treatment
Treatment Date:1/6/2008
Treatment Summary:FRAC WITH 750 GAL 7.55L, 304 SKS 30/50 SAND, 677 BBLS 2% KCL
Tubing Size:2.375 in.Tubing Setting Depth:6377 ft.
Tubing Packer Depth:Tubing Multiple Packer:
Open Hole Top:Open Hole Bottom:
Initial Test Data:
Test Date:1/18/2008Test Method:FLOWING
Hours Tested:0Gas Type:WET
Gas Disposal:SOLD
Test TypeMeasure
BBLS_H2O 13
BBLS_OIL 0
BTU_GAS 1070
CALC_BBLS_H2O 13
CALC_BBLS_OIL 0
CALC_MCF_GAS 58
CASING_PRESS 810
MCF_GAS 58
TUBING_PRESS 530
Perforation Data:
Interval Top:6433 ft.# Of Holes:18
Interval Bottom:6495 ft.Hole Size:0.34 in.

Formation WFCM                     Formation Classification:  GW                     Status:  PR - 10/1/2025                 Interval Top: 4637 ft.    Interval Bottom: 5890 ft.

 Completed Information for Formation WILLIAMS FORK - CAMEO
1st Production Date:2/22/2008Choke Size:0.438 in.
Formation Name:WILLIAMS FORK - CAMEOCommingled:Yes
Production Method:
Open Hole Completion:No
Formation Treatment
Treatment Date:1/6/2008
Treatment Summary:FRAC W/6000 GAL 7.5% HCL, 4403 SKS 30/50 SAND, 8803 BBLS 2% KCL
Tubing Size:2.375 in.Tubing Setting Depth:6377 ft.
Tubing Packer Depth:Tubing Multiple Packer:
Open Hole Top:Open Hole Bottom:
Initial Test Data:
Test Date:1/18/2008Test Method:FLOWING
Hours Tested:Gas Type:WET
Gas Disposal:SOLD
Test TypeMeasure
BBLS_H2O 212
BBLS_OIL 0
BTU_GAS 1070
CALC_BBLS_H2O 212
CALC_BBLS_OIL 0
CALC_MCF_GAS 548
CASING_PRESS 810
MCF_GAS 548
TUBING_PRESS 530
Perforation Data:
Interval Top:4637 ft.# Of Holes:144
Interval Bottom:5890 ft.Hole Size:0.34 in.
Primary Well Designation:
None      i
            All DesignationsDate
Reported PluggedN 
Out Of Service RepurposedN 
Out Of ServiceN 
Inactive ExceptionN 
Noticed InactiveN 
Defined InactiveN 
Low ProducingN 

BOE/MCFE/GOR Calculations
Production for Previous 12 Months
December 2024 - November 2025i
Total Oil Produced (Barrels)0
Total Gas Produced (MCF)8060
GOR
GOR DeterminationMCFE
Average BOE per Day3.805
Average MCFE per Day22.079

 Federal Financial Assurance  i 

 Tribal Well  i No